The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 1999
Filed:
Jul. 16, 1996
Applicant:
Inventors:
Daniel Dufour, Blainville, CA;
Richard J Brunner, Montreal, CA;
Ulises Olvera-Hernandez, Bellevue, CA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ; H04Q / ; H04Q / ;
U.S. Cl.
CPC ...
455438 ; 455439 ; 455443 ; 455444 ; 455452 ;
Abstract
In a cellular network having a first cluster of base stations serving a first group of mobile stations over digital RF channels and a second cluster of base stations, collocated with said first cluster, for serving a second group of mobile stations over analog RF channels, wherein some of the base stations in the second cluster have cells which overlap with cells of the first cluster, a method is disclosed for setting up a call on an analog voice channel of a base station of the second cluster while a mobile station is being served on a digital control channel of a base station in the first cluster.